128728864

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 292626432

約数和(自身を除く): 163897568

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 47, 62, 88, 94, 124, 176, 188, 248, 251, 341, 352, 376, 496, 502, 517, 682, 752, 992, 1004, 1034, 1364, 1457, 1504, 2008, 2068, 2728, 2761, 2914, 4016, 4136, 5456, 5522, 5828, 7781, 8032, 8272, 10912, 11044, 11656, 11797, 15562, 16027, 16544, 22088, 23312, 23594, 31124, 32054, 44176, 46624, 47188, 62248, 64108, 85591, 88352, 94376, 124496, 128216, 129767, 171182, 188752, 248992, 256432, 259534, 342364, 365707, 377504, 512864, 519068, 684728, 731414, 1038136, 1369456, 1462828, 2076272, 2738912, 2925656, 4022777, 4152544, 5851312, 8045554, 11702624, 16091108, 32182216, 64364432, 128728864]

約数ペア:

[(1, 128728864), (2, 64364432), (4, 32182216), (8, 16091108), (11, 11702624), (16, 8045554), (22, 5851312), (31, 4152544), (32, 4022777), (44, 2925656), (47, 2738912), (62, 2076272), (88, 1462828), (94, 1369456), (124, 1038136), (176, 731414), (188, 684728), (248, 519068), (251, 512864), (341, 377504), (352, 365707), (376, 342364), (496, 259534), (502, 256432), (517, 248992), (682, 188752), (752, 171182), (992, 129767), (1004, 128216), (1034, 124496), (1364, 94376), (1457, 88352), (1504, 85591), (2008, 64108), (2068, 62248), (2728, 47188), (2761, 46624), (2914, 44176), (4016, 32054), (4136, 31124), (5456, 23594), (5522, 23312), (5828, 22088), (7781, 16544), (8032, 16027), (8272, 15562), (10912, 11797), (11044, 11656)]